Subtraction — Number Bonds
Every subtraction fact from 2−1 to 18−9, built the same visual way every time — bonds to 5, 6 to 9, 10, 11 to 13, then 14 to 18.
✓ Matches the Australian CurriculumFoundation to Year 2 Number content descriptors (AC9MFN04, AC9M1N04, AC9M2A02).
Step 1 of 5
Bonds to 5
What is 4 − 2?
Ready for regrouping and trading?
This free lesson covers every subtraction fact to 18. The next step — multi-digit subtraction with regrouping, trading, and subtraction across zeros — is covered in our paid course.
See the Subtraction course